Between the Legion Go S and ROG Ally X, the Legion Go S comes out ahead in several specs, while the ROG Ally X wins on ram. Overall, the Legion Go S scores 65.1 and the ROG Ally X scores 70.9 on our Mars Score.
Which should you buy?
The ROG Ally X edges ahead on the Mars Score (65.1 vs 70.9), but the 5.8-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The Legion Go S doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the ROG Ally X if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are ram.
Both ship with comparable storage, max resolution, max refresh, so those specs don't separate the two — focus on the differences below.
Bottom line: the ROG Ally X is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Lenovo - Legion Go S wins
- No decisive advantages.
Why ASUS - ROG Ally X wins
- ▲RAM — 50.00% more. 24 GB vs 16 GB.
Spec comparison
Performance
Storage
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| Storageⓘ | 1024 GB | 1024 GB |
| Storage typeⓘ | NVMe SSD | NVMe SSD |
| Expandable storage | true | true |
Design & I/O
| Spec | Lenovo - Legion Go S | ASUS - ROG Ally X |
|---|---|---|
| Disc drive | false | false |
| HDMIⓘ | 0 | 0 |
| USB ports | 2lead | 1 |
| Weight | 0.640 kglead | 0.678 kg |
| VR support | false | false |
Frequently asked
Does Legion Go S or ROG Ally X have a disc drive?+
Neither has a disc drive.
Which supports higher refresh rates, Legion Go S or ROG Ally X?+
ROG Ally X supports up to 120Hz vs 120Hz.
Spec-level deep dives
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